To prepare 500. mL of 0.5 M NaCl from a stock of 2.0 M NaCl one ...

[CQXA]

To prepare 500. mL of 0.5 M NaCl from a stock of 2.0 M NaCl one needs to ________.
 
  A) dilute 125 mL 2.0 M NaCl with enough water to a total of 500. mL solution
  B) dilute 125 mL 2.0 M NaCl with 500. mL water
  C) dilute 375 mL 2.0 M NaCl with enough water to a total of 500. mL solution
  D) dilute 375 mL 2.0 M NaCl with 500. mL water

Question 2

Which of the following statements about chemistry is NOT true?
 
  A) Chemistry is an important component of the economy of the United States.
  B) Chemistry affects every area of our daily lives.
  C) Chemical products account for 10 of U.S. exports every year.
  D) All of the above are true.

[CourtneyCNorton]

Answer to Question 1

A

Answer to Question 2

D

[CQXA]

TYSM

[pratush dev]

Excellent